Charles Ellicott Commentary Jeremiah 11:6

"And Jehovah said unto me, Proclaim all these words in the cities of Judah, and in the streets of Jerusalem, saying, Hear ye the words of this covenant, and do them." — Jeremiah 11:6 (ASV)

In the cities of Judah ... —It is, at least, probable that the words are to be taken literally, and that the prophet went from city to city, doing his work as a preacher of repentance, and taking the new-found book of Deuteronomy as his text. The narrative of 2 Kings 23:13–20 indicates an iconoclastic journey throughout the kingdom as made by Josiah; and the prophetic discourse now before us, enforcing the observance of the covenant just made, would have been a fit accompaniment for such a mission.